화학공학소재연구정보센터
Journal of the American Chemical Society, Vol.137, No.46, 14574-14577, 2015
Asymmetric Synthesis of beta-Amino Amides by Catalytic Enantioconvergent 2-Aza-Cope Rearrangement
Dynamic kinetic resolutions of alpha-stereogenic-beta-formyl amides in asymmetric 2-aza-Cope rearrangements are described. Chiral phosphoric acids catalyze this rare example of a non-hydrogenative DKR of a beta-oxo acid derivative. The [3,3]-rearrangement occurs with high diastereo- and enantiocontrol, forming beta-imino amides that can be deprotected to the primary beta-amino amide or reduced to the corresponding diamine.